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Finding the Fourth Proportional to 647,047.20, 970,570.80 and 532,885.80

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Solution

The fourth proportional to 647,047.20, 970,570.80 and 532,885.80 is: 799,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,047.20 : 970,570.80 = 532,885.80 : x
  2. Step 2: Convert to fraction form
    647,047.20/970,570.80 = 532,885.80/x
  3. Step 3: Cross multiply
    647,047.20x = 970,570.80 × 532,885.80
  4. Step 4: Simplify right side
    647,047.20x = 517,203,397,214.64
  5. Step 5: Solve for x
    x = 517,203,397,214.64/647,047.20
  6. Step 6: Final answer
    x = 799,328.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.